56556006161519 has 4 divisors (see below), whose sum is σ = 56556279489696. Its totient is φ = 56555732833344.

The previous prime is 56556006161419. The next prime is 56556006161533. The reversal of 56556006161519 is 91516160065565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56556006161519 - 2¹² = 56556006157423 is a prime.

It is a super-3 number, since 3×56556006161519³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56556006161119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136353479 + ... + 136767624.

It is an arithmetic number, because the mean of its divisors is an integer number (14139069872424).

Almost surely, 2^{56556006161519} is an apocalyptic number.

56556006161519 is a deficient number, since it is larger than the sum of its proper divisors (273328177).

56556006161519 is a wasteful number, since it uses less digits than its factorization.

56556006161519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273328176.

The product of its (nonzero) digits is 7290000, while the sum is 56.

The spelling of 56556006161519 in words is "fifty-six trillion, five hundred fifty-six billion, six million, one hundred sixty-one thousand, five hundred nineteen".